LTC2844 - 3.3V Software-Selectable Multiprotocol Transceiver


  • Software-Selectable Transceiver Supports:
    RS232, RS449, EIA530, EIA530-A, V.35, V.36, X.21
  • Operates from Single 3.3V Supply with LTC2846
  • TUV Rheinland of North America Inc. Certified NET1, NET2 and TBR2 Compliant, Report No.: TBR2/051501/02
  • Complete DTE or DCE Port with LTC2846
  • 28-Lead SSOP Surface Mount Package

Typical Application

LTC2844 Typical Application


The LTC2844 is a 4-driver/4-receiver multiprotocol transceiver. The LTC2844 and LTC2846 form the core of a complete software-selectable DTE or DCE interface port that supports the RS232, RS449, EIA530, EIA530-A, V.35, V.36 or X.21 protocols.

The LTC2844 operates from a 3.3V supply and supplies provided by the LTC2846. The part is available in a 28-lead SSOP surface mount package.


CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
LTC2844CG#PBF SSOP-28 G C 05-08-1640 (G28) Yes
LTC2844CG#TRPBF SSOP-28 G C 05-08-1640 (G28) Yes
LTC2844IG#PBF SSOP-28 G I 05-08-1640 (G28) Yes
LTC2844IG#TRPBF SSOP-28 G I 05-08-1640 (G28) Yes

LTC2844 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
LTC2844CG#PBF SSOP-28 C $7.00 $5.75 Yes
LTC2844CG#TRPBF SSOP-28 C $5.83 Yes
LTC2844IG#PBF SSOP-28 I $8.20 $6.90 Yes
LTC2844IG#TRPBF SSOP-28 I $6.98 Yes
Buy NowRequest Samples
* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC497A LTC2846CG LTC2844CG | Software-Selectable Multi-Protocol Transceiver $50.00
Buy Now
Click here to view our complete list of demo boards


  • Data Networking
  • CSU and DSU
  • Data Routers

Product Notifications

Please login to your MyLinear account for notifications of datasheet updates, new document releases and LTspice model announcements for your favorite products. If you do not have a MyLinear account you may Sign Up Now.

Forgot your password? Click here.
Need help? Email with questions and comments.

Design Tools

Linear Technology provides a variety of custom design simulation tools and device models to allow even novice designers to quickly and easily evaluate circuits using high performance switching regulators, amplifiers, data converters, filters and more. Please visit our Design Tools page to view and download:

  • LTspice - A powerful SPICE simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators
  • LTpowerCAD - A complete power supply selection, synthesis and design tool
  • LTpowerPlay - A development environment supporting Linear Technology's Digital Power System Management (PSM) products
  • PScope & QuikEval - USB-based product demonstration and data acquisition system for use with our ADCs, DACs, and more
  • Linduino - Arduino compatible system for developing and distributing firmware libraries and example code
  • LinearLab Tools - A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards
  • And More!

Technical Support